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1、#CiscoLive#CiscoLiveMinse Kim,Sr.Product ManagerMeraki_MinseBRKEWN-2039Lets troubleshoot Cisco Meraki Wireless 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveEnter your personal notes hereCisco Webex App Questions?Use Cisco Webex App to chat with the speaker after the ses
2、sionFind this session in the Cisco Live Mobile AppClick“Join the Discussion”Install the Webex App or go directly to the Webex spaceEnter messages/questions in the Webex spaceHowWebex spaces will be moderated by the speaker until June 9,2023.12343https:/ 2023 Cisco and/or its affiliates.All rights re
3、served.Cisco PublicBRKEWN-2039Agenda 2023 Cisco and/or its affiliates.All rights reserved.Cisco PublicIntroductionTroubleshoot Wi-Fi Connection IssuesTroubleshoot Slow Wi-FiTroubleshoot AP IssuesProactive,Preventive Meraki Wireless OpsConclusionBRKEWN-2039 2023 Cisco and/or its affiliates.All rights
4、 reserved.Cisco Public#CiscoLiveWho I amAll-time Wireless veteran,Driving Wireless AIOps Innovations for the past 8 yearsBRKEWN-2039Minse Kim-Product Manager of Cisco Wireless AIOPsTroubleshootWi-Fi Connection Issue*Wi-Fi Synthetic Client solution name.This is subjective to change 2023 Cisco and/or
5、its affiliates.All rights reserved.Cisco Public#CiscoLiveDiscover Connectivity Problem from Wireless Overview DiscoverableNew Network service health for RADIUS,DHCP,DNSUnified Health Score CalculationBRKEWN-2039WirelessExperience DashboardNew 2023 Cisco and/or its affiliates.All rights reserved.Cisc
6、o Public#CiscoLiveUpdated Explainable Wireless Experience Health scoreNew Health score calculation is always based on Impacted Client Count RatioUse three left side KPIs as the numerator.Health score provides quickest visual guidance of impact of end-user Easy to find the OddApply unified,common for
7、mula across all other Health CategoriesStart Your Wi-Fi monitoring with Wireless Landing Page with ConfidenceBRKEWN-20391 out of 440 connection attempted clientFailed to connect 99.8%client successes5 out of 455 clients took more than 5 sec.to connect 99%client successes4 out of 457 clients took mor
8、e than 3 sec.to roam99.2%client successes 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveIdentify most impacted Clients and APIdentify badly behaving clientsIdentify AP that most impacted by client connection attempt failuresSimplified 2-Clicks Workflow to find the misbeh
9、aving AP,Client or network serviceLatest or Trending ViewSmart Threshold No Manual,Too High or Too Low syndromeBRKEWN-2039 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveNetwork Service Health for Connection Failure RCA Network Services-RADIUS,DHCP,DNS Health insights and
10、 RCATop Failure Reason Codes across all three services Filter by Server IPKeep the same workflow,same health score calculation logic(%of impacted client vs.total)BRKEWN-2039Early Access 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveTop-Down Discovery enables proactive is
11、sue resolutionBRKEWN-2039Use Global SearchGlobal Search to go straight into Impacted ClientOver the Top,Network Level pagehighlight I Impacted clientmpacted clientDetect Detect&Identify&IdentifyPostPost-MortemMortemTop DownTop DownRoot Cause IdentifiedRoot Cause IdentifiedBottom UpBottom Up 2023 Cis
12、co and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveIdentify what and why before end users report it93.1%of Wi-Fi Connection failures are happening during Authentication/DHCP/DNSIssues are transient and root cause is difficult to identifyBRKEWN-2039Slow ServerServer Not respondingAuth
13、 RejectionDHCP NAKMultiple ServersServer IP MismatchConfig Mistake 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveAI-driven Insight to know why it happenedRoot Cause Analysis engine suggests most probable answer using correlations of multi-stage reasonings,time space and
14、statistical probability analysisBRKEWN-2039 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveAI-driven Smart Alert to avoid false positiveBRKEWN-2039 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveUse Packet Capture to gather the forensic of conn
15、ection failureUse Filter to reduce the overhead to cloud connection pipeCaptures from Single or Multiple APs on targeted client MACPacket Captured in fully decrypted fashionBRKEWN-2039Things to considerAP packet capture cant represent client perspective from radio point of view as capture is done at
16、 the AP levelBi-Directional Packet Capture can be executed by Meraki Support 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveApple+Cisco PartnershipExclusive Apple+Cisco partnershipDevice-level details that pinpoint connection problems and keep hybrid workplaces running sm
17、oothly Continually learning from tens of millions of connections and improving performance across Meraki networksPinpoint wireless connection problems and isolate to device+OSBRKEWN-2039+TroubleshootingClient Roaming*Wi-Fi Synthetic Client solution name.This is subjective to change 2023 Cisco and/or
18、 its affiliates.All rights reserved.Cisco Public#CiscoLiveRoaming Experience monitoring and TroubleshootingDiscovery,Top-Down Workflow,Roaming Experience MonitoringBRKEWN-2039Bottom-Up,Drill Down Workflowfor Roaming Troubleshooting 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#Ci
19、scoLiveWhy Client roam?RF CoverageSession TimeoutGTK Renewal802.11k/v Client Balancing ActClient SSID Rotate after connection failureLot of Client Roam triggered from AP infrastructureAP Channel Change,including DFSAP Tx Power ChangeRF Coverage ChangeEnvironment ChangeLimited RF CoverageClient Movem
20、entRF RelatedRF RelatedEAP Session Mgmt.EAP Session Mgmt.AP TriggeredClient Triggered 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveReduce Network Changes to reduce the Client RoamReduce RF Changes to reduce the roamingBecause client roam to accommodate the changesBRKEWN
21、-2039Session TimeoutGTK Renewal802.11k/v Client Balancing ActAP Channel Change,including DFSAP Tx Power ChangeRF Coverage ChangeIncrease Session Time via RADIUSEnable 802.11k/v to avoid StickyRF RelatedRF RelatedEAP Session Mgmt.EAP Session Mgmt.2023 Cisco and/or its affiliates.All rights reserved.C
22、isco Public#CiscoLiveFrequent Roaming from RF Coverage IssueClient Roaming Troubleshooting is the most time-consuming and complicatedBRKEWN-2039Static Client between two or more AP coverage zoneAP Auto RF Event-Channel Change,Tx Power ChangeSession Timeout,GTK RotationPing-Pong ClientInter-band Roam
23、ingSticky Client 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveRoaming Protocol Interop Issues3+sec.of roaming delay(client neighbor list exhaustion)OKC or 11r Roaming FailureSession Renewal FailureGTK Renewal FailureBad/Slow RoamBRKEWN-2039Inter-band Roamdue to coverage
24、 issueRoaming Protocol Identification 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveThree Roaming ProtocolsBRKEWN-2039Fast TransitionFast TransitionFastest Roaming ProtocolRequires separate FT-enabled SSIDDont allow co-existence of Non-FT clients802.11 StandardSticky PMK
25、 CachingSticky PMK CachingCache PMK for last 8 connected APsNew AP association will always be full authentication802.11 standardOpportunistic Key CachingOpportunistic Key CachingRe-use 1st connection AP PMK for any subsequent roamed AP connectionNon-Standard but popular in Windows802.11r/FT802.11r/F
26、TSKCSKCOKCOKC*iOS Device&MacOS w/Apple Silicon*Applicable for certain android models*Supported Chipset&Driver 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveRoaming Best PracticeEnabled by Default150-300 msec roaming delaySupported from old Windows SystemThree Roaming Opt
27、ions,Choose based on your BRKEWN-2039Roaming Standard from 2008 Now 802.11r supported from all major vendors and OsesLook out for long roaming time from non-supported legacy device802.11r/FT802.11r/FTAdaptive 11rAdaptive 11rOKC/SKCOKC/SKCDefault ModeDefault+iOS DeviceBest Compatibility10-20 msec roa
28、ming delayiOS and flagship Samsung devicesLegacy device will continue to run OKC/SKCStandard Fast Roaming ProtocolTroubleshootingSlow Wi-Fi*Wi-Fi Synthetic Client solution name.This is subjective to change 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveSlow Wi-Fi is the C
29、ustomer Impact,not a root causeAmong many reasons,RF Optimization is the most common tactics to address concernBRKEWN-2039 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveWhy AP change its Channel?Mitigate Interferences and Constant efforts to move to the most available RF
30、 ResourcesBRKEWN-2039Use AI channel planning to avoid frequently DFS impacted Channel 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveRF Coverage is different by Client Types while AP decided Tx power based on Client Uplink RSSISetting up Tx Power Band to accommodate diffe
31、rent type of Device CapabilityBRKEWN-2039Client Uplink RSSI fluctuate-44 dBm -67 dBm While standing stillClient Downlink RSSI-68 dBm -72 dBm 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveDefault RF Profile offers Tx power band Best Practice to accommodate mobile devices
32、Wi-Fi performanceAvoid setting up too low Min Tx PowerBRKEWN-2039Open Office 5GHz/14 20 dBmClassroom 5GHz/14 20 dBmConference Room 5GHz/14 20 dBmAuditorium 5GHz/8 14 dBmTx Power Lower than 8 dBm may trigger excessive roaming and slower Wi-Fi due to clients capabilityInstead of lowering the Tx Power,
33、set the Channel Width to 20Mhz to avoid Co channel Interference 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveMonitor RF Channel UtilizationBoth Real Time and Trending ViewBRKEWN-2039Live Ch.UtilizationCh.Utilization TrendNetwork Level ViewAP List Network DiagnosticsAP L
34、evel ViewMonitor RF Spectrum 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveManage RF Interferences from New AP Neighbor ViewMake sure 5GHz band to run 20Mhz Ch.WidthNext-Generation AP RF Neighbor view Highlight the impact of Co-Channel InterferersVisualize Channel Overla
35、pping with Ch.Width viewConsolidate Single AP with Multiple SSIDsContinue real-time monitoring of RF Spectrum Analysis and current Ch.UtilizationBRKEWN-2039Beta on Q3CY23 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveWhy MulticastMulticast/Broadcast Traffic TypeMulticast
36、 Discovery mDNS,BonjourMulticast Voice/VideoARPDHCPNetBIOSBy Default,Meraki AP has Proxy ARP enabled,convert ARP Broadcast into UnicastMulticast Traffic can seriously degrade your network experience BRKEWN-2039Because Multicast Traffic uses legacy,mandatory data rate,default 12 Mbpsensure the delive
37、ry of multicast traffics to all its connected client 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveTame your MulticastMonitor MulticastAP List Sort by UsageSwitch Detail with Port StatisticsControl Multicast Traffic to maximize conventional data traffic capacityBRKEWN-20
38、39Optimize Multicast configuration Disable Lower Data RateL2 Isolation on Firewall RuleDrop Multicast via ACLManage MulticastBroadcast/Multicast Suppression Enabled Enable Bonjour Forwarding on specific service onlyMulticast to Unicast Conversion Enabled by defaultDisable NetBIOS from Windows HostsT
39、roubleshootAP Issues 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveAP List page is the most beloved Wireless DashboardBRKEWN-2039Powerful AP Management view that offer versatile status management optionAlertUseful Additional ColumnsFirmware versionEthernet/LLDPTAGSChanne
40、lsModelsClients 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveWhat can impact the Wireless ExperienceMost discovered AP issues in MR networksBRKEWN-2039No Newly offline deviceDormant APOffline for 7 DaysConnected as full duplexbut 100 Mbps speed Check Switch Port ConfigU
41、nreachableAP become RepeaterMultipleSW versions are being used 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveMost common three AP IssuesMost discovered AP issues in MR networksBRKEWN-2039AP is connected to higher power sources such as PoE+(802.3at)or UPoE(802.3bt)but onl
42、y be able to negotiate to default PoE,802.3af mode.makes AP vulnerable to rebootAP connected to 1Gbps or higher speed Ethernet connection(2.5Gbps,5Gbps or 10Gbps)but negotiated to 100Mbps speed.resulted in Wi-Fi slow speed.AP lost network connectivity via wired uplink,force AP to use much slower,wir
43、eless connection to connect internet.User in the Repeater mode AP experiences much slower speed,so it must be notified and addressedAP running in Low Power AP running in Low Power ModeMode100Mbps Speed Connection100Mbps Speed ConnectionGateway becomes repeaterGateway becomes repeater100Mbps802.3af/P
44、oEIPPowerDHCP,GW ReachabilityHDPowerSpeed/DuplexPowerPoE 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveAdditional AP AlertsHolistic Coverage of various events and alerts with Email/Syslog NotificationBRKEWN-2039Network AlertsDevice Level Event logs AP Lost Cloud connecti
45、vity AP becomes repeater Client receives poor signal Bandwidth Hogging Client Client Failed to connect Duplicate IPv6 Address Air Marshal Events DFS Events IP Conflicts AAA Server Timeout/Errors DHCP,DNS Server Errors Meraki VPN Errors 2023 Cisco and/or its affiliates.All rights reserved.Cisco Publi
46、c#CiscoLiveAlerts NotificationsProactive Alert NotificationEmail,WebHook,Syslog or SNMP TrapBRKEWN-2039Discovery via DashboardAP Alerts from AP View AlertHub Org Level Alert 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveAP Reset SSID Scheduled AvailabilityPeriodic Virtua
47、l AP(SSID)resetSSID down by 15min.Automate,Periodic recycle of APs BRKEWN-2039MS Port SchedulesAP Down 30min.Using Meraki API3rdParty ToolsThere is manual,single AP rebootOption 1-Virtual AP resetOption 2-AP shutdown/boot upOption 3-Automated via API 2023 Cisco and/or its affiliates.All rights reser
48、ved.Cisco Public#CiscoLiveAP Serviceability LSP Local Status PageFor Field EngineerPerformance TestSite Survey modeSystem ResetBRKEWN-2039AP Detail Tool TabFor both Local/Remote EngineerFlash LEDAP ResetPing,TracerouteEvent Log Per Network or per AP levelDownloadableStore up to 30 DaysProactive WLAN
49、 Monitoring*Wi-Fi Synthetic Client solution name.This is subjective to change 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveWishlist before we start RCA the Wireless IssuesSelf or External DiagnosisBRKEWN-2039Detect before BurstAP Problem orClient Problem 2023 Cisco and/
50、or its affiliates.All rights reserved.Cisco Public#CiscoLiveEarly Detection,avoid end-user impact through Proactive,Always-On Wi-Fi TestingSSID AvailabilityMREye focus on Wireless Network Service Readiness BRKEWN-2039Wi-Fi Onboarding ServiceNetwork ReachabilityRADIUSDHCPPingDNS 2023 Cisco and/or its
51、 affiliates.All rights reserved.Cisco Public#CiscoLiveWhat MREye does and doesntRF Coverage TestNot a Client PerspectiveBRKEWN-2039WLAN Service SSID AvailabilityApplicationExperienceRADIUS ServiceDNS ServiceNetworkReachabilityWirelessSpeed TestMREye TestDHCP ServiceDODONOT 2023 Cisco and/or its affi
52、liates.All rights reserved.Cisco Public#CiscoLiveProactive Wireless Assurance Service using Synthetic Wi-Fi ClientUse Scanning Radio as a Wi-Fi Synthetic Fully Integrated,no separate HW or SWRunning as regular AP and Synthetic client at the same timeConcurrent Operation of Scanning Radio+Wi-Fi Synth
53、etic clientNo Impact on Wireless Service RequirementHW Wi-Fi 6/6E MR/CW AP seriesSW-R30 or aboveMREye AP Integrated Wi-Fi synthetic clientBeta on Q3CY23BRKEWN-2039 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveAutomated Test SchedulerAutomated SSID Configuration Learning
54、Sensor runs test one test in every 15min.Cycle through different SSIDs and Band at each intervalSensor tests proceeds only few secondsTesting Every Operational APs,100%AP coverageFully Automated,Client and Target AP pairingNo Random Test Target selection,Cloud-based Automated Target AP selection No
55、Repetitive,Excessive TestAs each AP runs as a sensor on each SSID,DHCP Scope need to reserve additional IP addresses for sensorCloud-based Sensor-Target Selection made scheduling fully automated BRKEWN-2039SSSSTTTTSSTTSSTT 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveSy
56、nthetic Test Results works as Wireless Service Availability and BaseliningSynthetic Test Result Integrated with Wireless Overview Connection Health pageProvide if there is any wireless service degradation at network levelVisual Coherency between client experience and sensor test experienceDrill down
57、 view to zoom in to problematic area which SSID,what service is degraded,localize scope of impact Identify if its AP Issue or Client IssueBRKEWN-2039NetworkNetwork-Wide Service Failure discoveryWide Service Failure discovery 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLive
58、BRKEWN-2039AP Level AP Level-Localize Issues and Identity RCALocalize Issues and Identity RCASynthetic Test Result Integrated with Wireless Overview Connection Health pageProvide if there is any wireless service degradation at network levelVisual Coherency between client experience and sensor test e
59、xperienceDrill down view to zoom in to problematic area which SSID,what service is degraded,localize scope of impact Synthetic Test Results works as Wireless Service Availability and BaseliningIdentify if its AP Issue or Client Issue 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#
60、CiscoLiveProactive detection of misbehaving AP via Wi-Fi sensorAP Anomaly Detection detect SSID availability from MREye is the perfect solution to monitor Beacon Missing or Hung Radio,externally from other APMREye as an AP/SSID service assurance solutionFully Integrated approach guarantees 100%of AP
61、 Radios coverageBRKEWN-2039Blizzard:8A:15:14:F4:93:D0 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveAP Alert AP Radio Anomaly Self-closure WorkflowBRKEWN-2039Meraki_Corp:8A:15:14:F4:93:DF1.Report Beacon Miss2.RCA Beacon MissMeraki_Corp:8A:15:14:A4:92:1FGuided Recovery fr
62、om Beacon Miss Fix&Validation of AP Radio 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveConclusionRCAing Client connectivity Issues are now available from Top-Down Discovery as well as Bottom-Up approach Slow Wi-Fi Issues can be mitigated by customizing and adapting Auto
63、RF Meraki offers various tools and methodologies to troubleshoot Wi-Fi Issuesin both reactive and proactive approachTroubleshooting AP Issues are available through various AP Alerts and Notifications through Dashboard,Email,Webhook or syslog Meraki Wireless Troubleshooting is getting evolved to proa
64、ctive and preventive solutionBRKEWN-2039 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveWhere to find more infos.BRKEWN-2014:Meraki Health:An Intuitive AI/ML Solution to Simplify Network Operations at ScaleMeraki Document-AI-Powered Auto RF:Use AI to Bring Meraki Towards
65、RF Excellence!-https:/ Health overview-https:/ and Notification-https:/ Alerts Widget-https:/ 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveFill out your session surveys!Attendees who fill out a minimum of four session surveys and the overall event survey will get Cisco
66、Live-branded socks(while supplies last)!BRKEWN-2039These points help you get on the leaderboard and increase your chances of winning daily and grand prizesAttendees will also earn 100 points in the Cisco Challenge for every survey completed.2023 Cisco and/or its affiliates.All rights reserved.Cisco
67、PublicContinue your educationVisit the Cisco Showcase for related demosBook your one-on-oneMeet the Engineer meetingAttend the interactive education with DevNet,Capture the Flag,and Walk-in LabsVisit the On-Demand Library for more sessions at www.CiscoL you#CiscoLive 2023 Cisco and/or its affiliates
68、.All rights reserved.Cisco Public#CiscoLive57Gamify your Cisco Live experience!Get points Get points for attending this session!for attending this session!Open the Cisco Events App.Click on Cisco Live Challenge in the side menu.Click on View Your Badges at the top.Click the+at the bottom of the screen and scan the QR code:How:123457 2023 Cisco and/or its affiliates.All rights reserved.Cisco PublicBRKEWN-2039#CiscoLive